Test case for C<undef %File::Glob::>

[perl5.git] / t / op / magic.t

diff --git a/t/op/magic.t b/t/op/magic.t
index ab23d84..d71d6b2 100755 (executable)
--- a/t/op/magic.t
+++ b/t/op/magic.t
@@ -1,13 +1,14 @@
 #!./perl
 
 BEGIN {
-    $^W = 1;
     $| = 1;
     chdir 't' if -d 't';
     @INC = '../lib';
     $SIG{__WARN__} = sub { die "Dying on warning: ", @_ };
 }
 
+use warnings;
+
 sub ok {
     my ($n, $result, $info) = @_;
     if ($result) {
@@ -22,9 +23,11 @@ sub ok {
 $Is_MSWin32 = $^O eq 'MSWin32';
 $Is_VMS     = $^O eq 'VMS';
 $Is_Dos   = $^O eq 'dos';
+$Is_os2   = $^O eq 'os2';
+$Is_Cygwin   = $^O eq 'cygwin';
 $PERL = ($Is_MSWin32 ? '.\perl' : './perl');
 
-print "1..34\n";
+print "1..38\n";
 
 eval '$ENV{"FOO"} = "hi there";';      # check that ENV is inited inside eval
 if ($Is_MSWin32) { ok 1, `cmd /x /c set FOO` eq "FOO=hi there\n"; }
@@ -111,6 +114,14 @@ ok 18, $$ > 0, $$;
     if ($^O eq 'qnx') {
        chomp($wd = `/usr/bin/fullpath -t`);
     }
+    elsif($Is_Cygwin) {
+       # Cygwin turns the symlink into the real file
+       chomp($wd = `pwd`);
+       $wd =~ s#/t$##;
+    }
+    elsif($Is_os2) {
+       $wd = Cwd::sys_cwd();
+    }
     else {
        $wd = '.';
     }
@@ -120,8 +131,9 @@ ok 18, $$ > 0, $$;
     $script = "$wd/show-shebang";
     if ($Is_MSWin32) {
        chomp($wd = `cd`);
-       $perl = "$wd\\perl.exe";
-       $script = "$wd\\show-shebang.bat";
+       $wd =~ s|\\|/|g;
+       $perl = "$wd/perl.exe";
+       $script = "$wd/show-shebang.bat";
        $headmaybe = <<EOH ;
 \@rem ='
 \@echo off
@@ -135,11 +147,16 @@ __END__
 :endofperl
 EOT
     }
-    $s1 = $s2 = "\$^X is $perl, \$0 is $script\n";
-    if ($^O eq 'os2') {
-       # Started by ksh, which adds suffixes '.exe' and '.' to perl and script
-       $s2 = "\$^X is $wd/perl.exe, \$0 is $script.\n";
+    elsif ($Is_os2) {
+      $script = "./show-shebang";
     }
+    if ($^O eq 'os390' or $^O eq 'posix-bc' or $^O eq 'vmesa') {  # no shebang
+       $headmaybe = <<EOH ;
+    eval 'exec ./perl -S \$0 \${1+"\$\@"}'
+        if 0;
+EOH
+    }
+    $s1 = "\$^X is $perl, \$0 is $script\n";
     ok 19, open(SCRIPT, ">$script"), $!;
     ok 20, print(SCRIPT $headmaybe . <<EOB . <<'EOF' . $tailmaybe), $!;
 #!$wd/perl
@@ -149,13 +166,15 @@ EOF
     ok 21, close(SCRIPT), $!;
     ok 22, chmod(0755, $script), $!;
     $_ = `$script`;
-    s/.exe//i if $Is_Dos;
+    s/\.exe//i if $Is_Dos or $Is_Cygwin or $Is_os2;
     s{\bminiperl\b}{perl}; # so that test doesn't fail with miniperl
     s{is perl}{is $perl}; # for systems where $^X is only a basename
-    ok 23, ($Is_MSWin32 ? uc($_) eq uc($s2) : $_ eq $s2), ":$_:!=:$s2:";
+    s{\\}{/}g;
+    ok 23, (($Is_MSWin32 || $Is_os2) ? uc($_) eq uc($s1) : $_ eq $s1), " :$_:!=:$s1:";
     $_ = `$perl $script`;
-    s/.exe//i if $Is_Dos;
-    ok 24, ($Is_MSWin32 ? uc($_) eq uc($s1) : $_ eq $s1), ":$_:!=:$s1: after `$perl $script`";
+    s/\.exe//i if $Is_Dos or $Is_os2;
+    s{\\}{/}g;
+    ok 24, (($Is_MSWin32 || $Is_os2) ? uc($_) eq uc($s1) : $_ eq $s1), " :$_:!=:$s1: after `$perl $script`";
     ok 25, unlink($script), $!;
 }
 
@@ -170,16 +189,24 @@ if ($Is_VMS || $Is_Dos) {
 }
 else {
        $PATH = $ENV{PATH};
+       $PDL = $ENV{PERL_DESTRUCT_LEVEL} || 0;
        $ENV{foo} = "bar";
        %ENV = ();
        $ENV{PATH} = $PATH;
+       $ENV{PERL_DESTRUCT_LEVEL} = $PDL || 0;
        ok 29, ($Is_MSWin32 ? (`cmd /x /c set foo 2>NUL` eq "")
                                : (`echo \$foo` eq "\n") );
 
-       $ENV{NoNeSuCh} = "foo";
+       $ENV{__NoNeSuCh} = "foo";
        $0 = "bar";
-       ok 30, ($Is_MSWin32 ? (`cmd /x /c set NoNeSuCh` eq "NoNeSuCh=foo\n")
-                                               : (`echo \$NoNeSuCh` eq "foo\n") );
+       ok 30, ($Is_MSWin32 ? (`cmd /x /c set __NoNeSuCh` eq "__NoNeSuCh=foo\n")
+                           : (`echo \$__NoNeSuCh` eq "foo\n") );
+}
+
+{
+    local $SIG{'__WARN__'} = sub { print "# @_\nnot " };
+    $! = undef;
+    print "ok 31\n";
 }
 
 # test case-insignificance of %ENV (these tests must be enabled only
@@ -188,14 +215,35 @@ if ($Is_MSWin32) {
     %ENV = ();
     $ENV{'Foo'} = 'bar';
     $ENV{'fOo'} = 'baz';
-    ok 31, (scalar(keys(%ENV)) == 1);
-    ok 32, exists($ENV{'FOo'});
-    ok 33, (delete($ENV{'foO'}) eq 'baz');
-    ok 34, (scalar(keys(%ENV)) == 0);
+    ok 32, (scalar(keys(%ENV)) == 1);
+    ok 33, exists($ENV{'FOo'});
+    ok 34, (delete($ENV{'foO'}) eq 'baz');
+    ok 35, (scalar(keys(%ENV)) == 0);
 }
 else {
-    ok "31 # skipped",1;
-    ok "32 # skipped",1;
-    ok "33 # skipped",1;
-    ok "34 # skipped",1;
+    ok "32 # skipped: no caseless %ENV support",1;
+    ok "33 # skipped: no caseless %ENV support",1;
+    ok "34 # skipped: no caseless %ENV support",1;
+    ok "35 # skipped: no caseless %ENV support",1;
 }
+
+# Make sure Errno hasn't been prematurely autoloaded
+
+ok 36, !defined %Errno::;
+
+# Test auto-loading of Errno when %! is used
+
+ok 37, scalar eval q{
+   my $errs = %!;
+   defined %Errno::;
+}, $@;
+
+
+# Make sure that Errno loading doesn't clobber $!
+
+undef %Errno::;
+delete $INC{"Errno.pm"};
+
+open(FOO, "nonesuch"); # Generate ENOENT
+my %errs = %{"!"}; # Cause Errno.pm to be loaded at run-time
+ok 38, ${"!"}{ENOENT};